An important question is the clarification of paternity. To do this, contact the locally responsible youth welfare office, Office for Social Services.
Youth welfare offices in Rheinland-Pfalz: https://kita.rlp.de/fileadmin/kita/01_Themen/01_Wir_ueber_uns/Jugendaemter_rlp.pdf
You will find information concerning expectant fathers at:
https://bus.rlp.de/detail?pstId=8936717
You can also find offers for expectant fathers at: https://www.profamilia.de/themen/eltern-sein/vaterschaft.html