Background: me 31, OH 32. Low AMH (13.1 a year ago), him low morphology (1%), but everything else fine on SA.
I have 12 day luteal phase, and recently my EWCM seemed to dry up a little bit. Never been pregnant before, but this was only our second month of trying, so despite low AMH and low morphology there was no proven infertility. So who knows what would have happened if we'd just left it to chance...
Anyway, this is what we did:
Temping, charting on kindara, CM monitoring, drank 250ml of pure grapefruit juice from CD10 to CD16 to improve slipperiness of EWCM, used instead softcups after intercourse during fertile days, monitored my follicles through ultrasound (lucky enough to a midwife sonographer), this not necessary by the way ;) it was only for my personal curiosity :)
CD1 to CD5: menses
CD7: spotting + sticky CM
CD8: sticky CM, intercourse
CD8,9,10,11: sticky CM
CD12: creamy CM, slippery and lubricated vaginal sensation, follicle not mature yet though (as per ultrasound)
CD13: creamy CM
CD14: EWCM! slippery and lubricated vaginal sensation
CD15: EWCM, slippery, wet and lubricated vaginal sensation, temperature dip. Intercourse, instead softcup inserted straight afterwards and kept in overnight.
CD16: another temp dip, CM somewhat creamy and vaginal sensation only slightly slippery. Intense Ovulation pain in the evening. Ovulation day! Intercourse + instead softcup overnight.
1DPO: temp rise above coverline, CM back to sticky.
2DPO: sticky CM
3DPO: sticky CM
4DPO: sticky CM
5DPO: sticky CM
6DPO: sticky CM
7DPO: sticky CM
8DPO: temp dip waaaay below coverline, sticky CM
9DPO: even deeper temp dip, sticky CM
10DPO: temp back up, creamy CM, slight nausea in the evening for about an hour
11DPO: temp dip below coverline, creamy CM
12DPO: temp dip below coverline, sticky CM. POAS (not FMU) just out of curiosity as these temps don't look promising at all... faint BFP!!! Sore breasts.
13DPO: no menses, temp very high. BFN :(
14DPO: no menses, very, very, veeeery faint BFP.
15DPO:no menses, sore breasts, faint BFP.
16DPO: breasts suuuper sore, and nipples... OMG, so sensitive and sore. Slightly darker BFP.
17DPO: temp dip, tiny amount of spotting, more brownish sticky CM. watery discharge.
18DPO: temp dip, watery discharge.
19DPO: temp back up, nausea in evening.
20DPO: temp dip, breasts not sore anymore.
21DPO: finally a clear and strong BFP :D sore breasts and sensitive nipples.
I think implantation was late-ish, hence it took a while for those BFPs to get darker.
I also started taking maca and vitex from CD15, OH also started maca. I honestly do not think they had anything to do with the BFP as I don't see how they would have had time to work!
I think the winning combo was: intercourse on the day before and the day of ovulation + softcups. I improved the fertile quality of my CM with grapefruit juice, but if your EWCM is wet and fertile you don't need this.
What I learned: BFPs can take a loooooong time to get darker!
Baby dust to you all :D