contractions

hi momshies.. a bit worried here. 22 weeks preggy po ako and may mga contractions especially before gumagalaw c baby.. normal lang ba ito? kase sa 2 babies ko before hindi nman masyadong nag-cocontract tyan ko unless nung malapit na ako manganak.. i had preterm last 2017 and ectopic pregnancy last year and has low lying placenta.. na bo bother na ako since na phobia na ako sa sakit na na experience ko..