Help someone talk to me

Im am 25 i have a almost 8 year old son and i had a misscarage 4 years ago i want another kid so bad i wiegh around 195 iwas wieghing after i had my son 233 i lost alot of wieght my brothers and siter all have kore than one kid im the only one with one do yo think its my wieght i have inregular periods and get them every two months me and my husband have been trying going on 7 years we both want anotger one i do have pcos but not serious my cyst come and go please someone talk to ne give me hopwme and baby dust im fmtired of trying i pray i go to church i dont smoke or drink i love being with my son he hoes almost everywhere with me