PLEASE HELP (pcos and endometriosis)

Hiya,

Im 21 and i have PCOS and endometriosis, i came off the pill 2 years ago to try and get pregnant but i either havent had a period or i had very irregular period and.I started to become regular may, june and july last year but then I havent had a period since august now and even though i havent had a period i got pregnant and misscaried just under 12 weeks then got pregnant again and had a missed miscarriage in early february and had it surgically removed. Now yet again after being told by docs i should have had a period again by now i still havent and im starting to get worried. After i had spoken to them about having no period they said all i could do is just take pregnancy tests every month which is costing me a lot of money.

Has anyone gone through something similar? Really need some advice!

PLEASE HELP