ovulation after miscarriaged

I Have miscarried twice. on october 2017 at 10weeks. i then got pregnant in feb 2018 and has miscarriaged again at 8 weeks. i already have 2 boys and 1 daughter. my husband and i are trying fr our last child. two weeks on now before my period, i did an ovulation test last night and got a smiley face ( ovulation sign). we had sex 2 days ago and last night both with long orgasms . vould this be my chance to rejoice fill term pregnancy? lets see.